20467928

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{15139}}^1$

素因数の和:15171

約数の個数: 24

約数和(自身を含む): 41559300

約数和(自身を除く): 21091372

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1352, 15139, 30278, 60556, 121112, 196807, 393614, 787228, 1574456, 2558491, 5116982, 10233964, 20467928]

約数ペア:

[(1, 20467928), (2, 10233964), (4, 5116982), (8, 2558491), (13, 1574456), (26, 787228), (52, 393614), (104, 196807), (169, 121112), (338, 60556), (676, 30278), (1352, 15139)]